Casella CEL Indoor air quality monitor - Manual (Page 37)

Sensor Specifications
12.8 O
2
Gas Detector
The O 2 gas detector has been designed to provide continuous pollution
monitoring. The sensor uses electrolytic fuel cells which have a typical life
expectancy of approximately 2 years, depending on the working conditions
(temperature, humidity, etc.).
The sensor is designed to detect
the specific gas with a minimum
concentration of 0.1 ppm. For
applications where the gas is
anticipated in any appreciable
quantity, this level of detection is
sufficient.
For ambient gas detection at a
distance from the source, a gas
analyser may be required which
has the capability to measure
down to levels of 1 ppb.
The standard detector is housed
within a Polycarbonate Housing
and can be mounted on the hub
support arms with spring clips.
The units must be installed in
non-classified areas.
Sensor
02066
Slide-in
labels
Connection
cable
Clips
Gas Detector
CTX300
Location Gas
O
2
Specification
Range 0 - 30%
Accuracy ±1.5%
Response Time T(50) 10 seconds
Operating Humidity Range 10 - 95% RH
Operating Temperature Range -20 to +50
o
C
Supply Voltage 15 - 32 V
Atmospheric Pressure ±10%
Life Span 20 to 28 months
Housing Sealed to IP66
When Ozone measurement is required together with CO, a
special connector box will be required to connect the two
sensors into one
channel.
Page 37 of 42
MICROTHERM indoor air quality &
WinIaq Application Software - User Manual